Leaky Shower Valve Repair: A Melbourne Homeowner’s Guide

A dripping shower handle is one of those problems Melbourne homeowners tend to ignore for too long. It starts as a faint tick, a wet stain on the vanity, or a shower floor that never quite dries out, then turns into a bathroom that smells musty and costs more to live with every month.

In older inner-suburb homes and renovated apartments across Melbourne, that drip is rarely just an annoyance. It can point to a worn cartridge, a tired washer, a showerhead issue, or something more serious behind the tiles. If the leak is allowed to keep going, the repair often gets bigger, because hidden moisture can move into wall cavities, finishes, and framing. That's why leaky shower valve repair is really about diagnosis first, not just parts replacement.

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That Dripping Shower Handle Is Telling You Something

A Bayside ensuite that never quite shuts off tells a familiar story. The tenants move out, the owner notices a slow drip from the spout, and suddenly the vanity edge has a water mark that wasn't there before. The handle feels a bit loose, the shower head hisses after use, and the bathroom has started asking for attention.

That symptom matters because shower efficiency and leak awareness aren't cosmetic issues in Australia. The Australian Government's WELS scheme has applied nationally since 1 July 2006, and it rates showerheads by star efficiency to reduce household water use. In practical terms, even a small drip matters in a country where household leaks can waste large volumes of water, and the U.S. EPA's WaterSense data shows a single showerhead leaking at 10 drips per minute wastes more than 500 gallons per year. Household leaks can waste more than 10,000 gallons annually as well, so the logic for fixing a shower leak is tied to water loss, bills, and moisture damage, not just comfort EPA WaterSense leak guidance.

A drip that seems minor at first can stay hidden for months, then show up as staining, swelling, or mould in the wrong place.

The visible leak isn't always the real fault

A handle leak often gets blamed on the valve because that's the part you can see and touch. Sometimes that's right. A worn cartridge or washer is common, and in many bathrooms the fix is straightforward if the rest of the installation is sound.

But Melbourne renovations tell a second story. Older bathrooms, especially ones updated before modern membrane standards, can leak because water is travelling behind the wall lining and out through the valve opening. When that happens, the drip is just the symptom, not the diagnosis. A sensible repair starts by asking whether the valve is failing, or whether the wall system around it has already failed.

Is It Really the Valve? Quick Checks Before You Touch Anything

Before you pull the handle apart, run a few checks that separate a simple valve fault from a showerhead or concealed-wall problem. The point is to avoid opening up a working valve and chasing the wrong part. A ten-minute diagnosis can save an unnecessary tile repair later.

A safety infographic showing six numbered steps to check before working on industrial valves and equipment.

Start with the drip pattern

Watch what happens when the handle is fully off. If the drip slows down after the shower is left alone, that often points to an internal seal, cartridge, or washer issue. If it keeps going steadily, especially after a while, the problem may be pressure-related or coming from somewhere else in the assembly.

Next, isolate hot and cold if the setup allows it. Some valves behave differently depending on which side is under pressure, and that clue helps narrow the fault before anything is dismantled. If there are supply-stop valves behind the trim, they can help localise the issue without shutting off the whole property.

Check the showerhead and the wall around it

A showerhead can mimic a valve leak, especially if mineral buildup or a loose threaded connection is involved. Feel the shower arm joint, check the head, and look for water tracking along the fitting rather than from the valve body. A wrap of fresh PTFE thread tape or a tightened head may solve a joint leak, but don't assume that's the whole story if water is showing up elsewhere.

Then look outside the shower. Bubbling paint, swollen skirting, staining on adjacent walls, or a musty smell in the next room are red flags. Those signs usually mean the problem has moved beyond a trim-level repair and may involve a concealed wall failure. For homeowners wanting a local diagnostic starting point, this Melbourne shower leak detection resource is worth keeping handy.

Tools, Parts and Safe Isolation in a Melbourne Bathroom

A proper repair starts with the right tools on the bench, not half-way through the job. For most valve repairs, the practical kit is simple, but every item earns its place. You'll want an adjustable spanner, Phillips and flathead drivers, an allen key set, needle-nose pliers, plumber's grease, thread tape, a torch, and a phone or camera so you can photograph the assembly before you pull it apart.

The parts side matters just as much. Don't guess the cartridge by shape alone. Match it by brand and model where possible, especially in older Melbourne bathrooms where imported mixers and long-discontinued Australian valves still show up in renos and strata stock.

Isolate the water properly

Find the main bathroom stop tap first, then test it before touching the valve. Open the shower handle after shutting the supply to confirm pressure is off, because a trapped line can still surprise you. If mini isolation valves are hidden behind the trim plate, use them only if you can identify them clearly and they move freely.

If you can't confirm isolation, stop there. A dribbling valve is annoying, but a live line behind a wall opening turns a simple repair into a much bigger one.

Once the supply is off, photograph the trim, retaining clip, and cartridge orientation before removal. That single habit prevents a lot of reassembly mistakes. If you're dealing with a bathroom that's tied into a wider renovation, this Melbourne shower repair guide is a useful companion for the practical side of the work.

Replacing the Cartridge or Washer Step by Step

A good cartridge swap feels calm, not rushed. The handle comes off first, then the cap and trim plate, and only then do you get access to the valve body. The retaining clip is usually the part that turns a simple job into a frustrating one, so pull it carefully and keep it somewhere visible.

A step-by-step infographic showing how to replace a leaky faucet cartridge or washer in eight simple steps.

Remove straight, then match the part exactly

Pull the cartridge or stem straight out without twisting it if you can avoid it. If it's seized, that's where a stuck puller or a little patience comes in, especially in 1990s bathrooms where old cartridges can bind in place. Gentle heat can help, but forcing it usually damages the body or seats.

The replacement needs to go back with the orientation lugs matched to the valve body. Hot and cold sides matter, and so does the cartridge's seating depth. If you reuse a tired seal or clip it back in crooked, the shower can still drip after reassembly, which is why cartridge orientation and retaining-clip seating are the most common failure points in repair work.

Reassemble, grease, and test twice

Before reassembly, lightly grease the o-rings and any contact surfaces that need it. Then work in reverse order, trim plate first, handle last, and don't over-tighten cosmetic fittings. Once everything is back together, test under live flow, then shut it off and test again after residual pressure returns.

The real finish line isn't “it looked fine when I turned it on.” It's “it stayed dry after the line settled back down.”

That post-test check matters because some leaks only show once pressure returns to the line. If the valve still drips, the issue may be the seat, the cartridge, or the hot/cold side rather than the part you just changed. At that point, another round of guesswork usually costs more than getting the right diagnosis.

Repair Versus Full Replacement in Older Melbourne Homes

Older Melbourne homes often hide the decision in the wall. A cartridge or washer replacement is the right answer when the valve body is sound, the part is still available, and the seal surfaces haven't been chewed up by years of use. Full replacement makes more sense when the body is corroded, the threads are stripped, the valve has been over-tightened too many times, or the part is no longer easy to source.

The cost picture makes that choice worth thinking about early. National reference ranges commonly place shower valve repairs around $150 to $350 and full valve replacement around $225 to $575 Modernize cost reference. In Melbourne, that gap matters more in older housing stock, where labour, access, and part compatibility can shift a simple repair into a more involved rectification.

A practical comparison

Factor Cartridge or Washer Repair Full Valve Replacement
Typical fit Good when the body is sound and the part is available Better when the valve is corroded, stuck, or obsolete
Access impact Usually limited to the trim and internal parts Often more disruptive, especially in older walls
Risk level Lower if the right part is matched and seated correctly Lower long term if the existing valve is worn out
Best use case Early leak, clean body, known brand Repeated leaks, corrosion, failed parts supply
Renovation value Keeps costs down for a straightforward fix Makes sense during a planned bathroom upgrade

When replacement is the smarter call

If you're already planning bathroom renovations, replacement can be the cleaner path. That's especially true where the existing valve is incompatible with modern parts or where a newer pressure-balanced or thermostatic unit would improve reliability. WELS-rated fixture choices also make sense when a bathroom is being refreshed, because water efficiency is part of the long-term value equation in Australia.

Melbourne homeowners usually feel the trade-off in the labour bill, not just the parts box. A cheap repair that fails twice isn't cheap at all. A full replacement done at the right time can save a second callout and avoid chasing the same leak through an old valve body.

When the Leak Is Really a Waterproofing and Building Compliance Job

A shower that keeps leaking after a cartridge swap is telling you something different. The water may not be coming from the valve hardware at all. It can be tracking through failed waterproofing, moving through a degraded membrane, or collecting in the substrate and showing up where the trim meets the wall.

That's where the visible clues matter. Efflorescence on grout lines, soft or hollow-sounding tiles, mould at the shower base, or moisture readings on adjoining walls point to a concealed problem rather than a tidy valve fix. If those signs are present, a handle repair won't close the system back up.

A diagram explaining that building leaks are often due to waterproofing and compliance issues, not just repairs.

Why compliance changes the job

Australia's National Construction Code and waterproofing requirements make shower waterproofing mandatory in compliant bathroom construction. That means leak repair can become a building compliance issue as soon as the wall lining, membrane, or tile substrate needs to be opened up. In Victoria, structural changes, plumbing changes, or waterproofing work generally pull the job beyond minor repair territory and into registered-practitioner work.

That's also where the role split matters. A licensed plumber handles the pipework and valve side. A registered waterproofing applicator addresses membrane failure. A Registered Unlimited Builder can coordinate the broader rectification across carpentry, plumbing, waterproofing, and tiling, which is often what a Melbourne bathroom needs once the leak has moved behind the tiles. Melbourne Tiling Services P/L also publishes guidance on waterproofing compliance in Victoria, which is a useful reference point when the repair starts looking like a renovation.

What not to ignore

If the wall feels soft, the skirting has swollen, or the shower base is holding damp longer than it should, the issue has likely moved past the valve. At that stage, the smartest move is to stop treating it like a small plumbing fix. A proper leak rectification may start with a handle, but it can end with a membrane repair, tile replacement, and compliant rebuild.

Your Decision Framework After the Drip Stops

Once the dripping stops, the key question is which path got you there. A clean DIY cartridge swap is the right result when the valve was easy to isolate, the part matched properly, and the shower stayed dry after the pressure test. That outcome usually suits a straightforward, recent installation with no hidden wall damage.

A licensed plumber call-out makes sense when the valve is stubborn, the isolation isn't clear, or the leak doesn't behave like a simple worn seal. That path is also the safer one when you're dealing with an older mixer, unknown parts, or repeat dripping after reassembly. The time signal is usually obvious, because a few minutes of DIY turns into a stalled bathroom and a pile of trim pieces.

The third path is the one Melbourne homeowners often miss. If the leak comes with tile movement, damp walls, or signs of waterproofing failure, the job has crossed into rectification and likely needs a registered builder to coordinate the repair properly. That's the point where bathroom renovations and leak repairs overlap, and it's better to treat the wall system correctly than keep swapping parts that aren't the core issue.

Screenshot from https://melbournetilingservices.com.au

If your shower drip looks like a simple valve fault, Melbourne Tiling Services P/L can help assess whether it's a quick plumbing fix or a wider waterproofing problem. If the leak has started to affect tiles, membranes, or adjoining finishes, visit Melbourne Tiling Services P/L to organise a quote and talk through the repair or renovation scope with a Melbourne specialist.

Vanity Installation Cost: A Complete 2026 Pricing Guide

In Australia, a straightforward vanity installation typically lands between A$400 and A$2,500 depending on whether the existing plumbing stays in place, and Melbourne bathroom renovations often move past A$10,000 once regulated work is included. Once you factor in plumbing, waterproofing, tiling and finish repairs, the vanity stops being a cabinet purchase and becomes a small coordination job.

That's the part most homeowners don't see at first. You're standing in a showroom, comparing two quotes that both say “vanity install”, and one looks cheap enough to sign on the spot. The other is higher, but it's often the one that includes the work older Melbourne bathrooms tend to need.

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Why a Vanity Quote Is Never Just About the Vanity

A couple walked into a bathroom showroom in Melbourne with two quotes in hand and the same question every builder hears. One quote was bare bones, the other had a longer breakdown and a noticeably higher total. The cheaper one looked cleaner on paper, but it didn't say much about plumbing movement, wall repairs or disposal, which is exactly where bathroom jobs start to drift.

That's why vanity installation cost in Australia is rarely a single line item. A vanity touches cabinetry, tapware, waste plumbing, waterproofing interfaces, tiling edges and, in many older homes, the wall structure behind the unit. If the rough-in lines up perfectly, the job stays simple. If it doesn't, the price changes quickly.

For Melbourne homeowners, the regulatory side matters too. Once a bathroom renovation includes wet-area work, the project sits inside the world of bathroom renovations and registered builders, not just a cabinet swap. Victorian projects that involve multiple trades need proper sequencing and compliance, which is why a quote that ignores scope is often the one that causes grief later. The practical test is simple, if a tradesperson can't explain how the old vanity comes out, how the new one connects, and what happens if the wall is damaged, the quote probably isn't complete.

Practical rule: the cheapest quote is only the cheapest if it includes the same scope.

The other reason this article exists is the gap between showroom pricing and site reality. Bathroom pricing in Australia is usually discussed as part of a broader renovation budget, because cabinetry, joinery and wet-area labour are where costs tend to move. For homeowners, that means the primary question isn't “What does a vanity cost?”, it's “What does this specific bathroom need to make the vanity fit properly?”

See the compliance angle in more detail at Victorian waterproofing certificate requirements.

What a Typical Vanity Installation Costs in Australia

A vanity install is priced as a range because the cost is largely determined by the site conditions, not just the cabinet. In the AU market, a simple vanity swap is usually far cheaper than a full bathroom strip-out if the installer can leave the existing rough-in and waste position alone. Current trade pricing references put standard vanity installation at about A$400 to A$2,500, with basic freestanding units around A$400 to A$900 and larger or custom units climbing above A$2,500 Trusted Tradie Network.

Older Melbourne bathrooms rarely stay in the simple end for long. Once the existing vanity has to come out, the job can expose uneven walls, tired pipework, damaged tiles and awkward clearances that were hidden behind the old unit.

What the low end really assumes

The lower end generally assumes the plumbing stays in place, the vanity matches the existing footprint, and the wall finish behind it needs little or no repair. That is the sort of install where the cabinet arrives ready to fit, the old unit comes out cleanly, and the new one goes back without chasing pipes or reworking tiles. Newer bathrooms with predictable layouts make that job straightforward, but a lot of older homes do not give you that luxury.

Why the upper end climbs fast

Wall-hung cabinetry, stone tops, off-centre tapware and custom widths push the job into a different category. The installer is no longer only fitting a cabinet, the work can also involve carpentry, plumbing adjustment, wall reinforcement and extra labour to get all the details aligned. That is why the same vanity can sit near the bottom of the range in a newer apartment and near the top in a renovation with ageing services.

The quote also sits inside the wider bathroom budget, because vanity installation often triggers related work that sits outside the cabinet price. NSW Government Renovate or Build guidance notes that bathroom renovations can run from about $10,000 for a basic cosmetic refresh to more than $35,000 for a full renovation, with cabinetry and joinery as major drivers NSW Government Renovate or Build guidance. If you want a clearer picture of how vanity work sits inside a larger job, see typical bathroom renovation cost in Melbourne.

A gauge chart illustrating the typical Australian vanity installation cost range between $1,200 and $3,500 plus.

An Itemised Breakdown of Where the Money Goes

A proper quote separates the vanity from the work around it. That matters because the cabinet itself is only one part of the job, and in Melbourne bathrooms, the hidden scope often costs more than people expect. Older homes especially tend to need patching, plumbing adjustment and tidy-up work once the old unit comes out.

The best way to read the quote is to trace each cost bucket back to a trade task. That's also where a serious builder or installer earns trust, because itemisation tells you what's included and what isn't. A lump sum with no breakdown is usually the quote that leaves room for disputes later.

Cost Bucket What It Covers What Pushes Cost Up
Vanity unit Cabinet carcass, doors, drawers, finish Custom sizing, wall-hung design, premium materials
Benchtop and basin Laminate, stone, integrated or drop-in basin Stone tops, integrated basins, non-standard cut-outs
Plumbing labour and fittings Disconnecting, reconnecting, traps, wastes, tap alignment Plumbing relocation, awkward rough-ins, licensed plumbing work
Waterproofing interfaces Sealing disturbed wet-area joins Any wall opening, membrane disruption, old shower-adjacent damage
Demolition and removal Taking out the old vanity Heavy built-in units, tight access, stone tops
Disposal Haul-away and waste handling Large units, stone tops, difficult site access
Tiling patch or repair Repairing splashback edges or wall finishes Mismatched tiles, large footprint changes, damaged substrate
Electrical adjustments Shaver points, lighting, nearby outlets New mirror cabinets, moved outlets, compliance work
Builder coordination Sequencing trades and checking finish quality Multi-trade jobs, heritage homes, regulated renovation work

The removal side is worth watching closely. Disposal costs are often bundled, but not always, and vanity removal pricing can vary depending on size and material. Professional removal and disposal is commonly quoted separately from install work, which is why you should ask whether the old unit is being carted away or left onsite vanity removal cost guidance.

For a wider renovation quote that includes surrounding work, see Melbourne bathroom renovation cost guidance.

A clear quote should show how the vanity, the plumbing and the wall finish connect. If one of those pieces is missing, the final bill usually gets larger, not smaller.

The Factors That Quietly Change the Price

The number on the quote moves fastest when the homeowner changes the geometry of the job. A vanity can look small on a plan and still create a lot of extra labour if the basin shifts, the tap centre changes or the cabinet no longer fits the old opening. That's why two cabinets that look similar in a showroom can produce very different installation totals.

Size, material and cabinet style

A wider vanity costs more to move, more to fix in place and more to line up with the surrounding wall finishes. Materials matter too, because laminate is easier to handle than a stone top, and a custom cabinet usually needs more careful measuring than an off-the-shelf modular unit. Wall-hung vanities also add work because the wall has to carry the load properly.

Plumbing location and wall structure

Keeping the existing plumbing rough-in in place is the simplest path. Move the waste or water lines, and the job becomes a plumbing coordination exercise, not a swap. In many older Melbourne bathrooms, that also means patching tiles, fixing the substrate and sometimes reinforcing the wall behind a floating vanity so the fixings land where they should.

Here's the rule I use when quoting:

  • Low scope: same size, same style, same plumbing position.
  • Mid scope: different vanity or basin, minor plumbing changes, small wall repairs.
  • High scope: wall-hung unit, plumbing relocation, tiling patching, reinforcement or electrical changes.

That's the practical difference between a quick installation and a project that needs trade sequencing. The more the new vanity differs from the old one, the more the job spreads across carpentry, plumbing, tiling and finishing. In older homes, the hidden cost is usually not the cabinet, it's the correction work around it.

Matching the install type to the room

A floor-mounted unit in a neat apartment bathroom is one thing. A floating vanity in a tight heritage room with old services is another. If the layout is changing at all, expect the quote to reflect labour, not just product. That's normal, and it's also why low headline pricing can be misleading when the worksite isn't new.

An infographic illustrating factors affecting bathroom vanity installation costs, comparing budget-friendly options against premium, high-impact choices.

Melbourne Case Studies Across Three Budget Tiers

A newer apartment in Melbourne's inner suburbs usually gives you the cleanest vanity installation. The cabinet is often a like-for-like replacement, the waste line stays put, and the wall finish may only need a small repair where the old unit came off. In that kind of job, the quote sits near the lower end because the work is mostly removal, refit, and connection, with little hidden scope.

Budget-friendly swap in a newer apartment

This version usually uses a standard modular vanity, a basic basin, and the existing plumbing position. The job stays straightforward because the new cabinet matches the old footprint and the install does not force other trades into the room. If the wall and floor are in decent condition, the price is driven by clean labour rather than repair work.

Mid-range ensuite refresh with custom joinery

A mid-range ensuite often brings in a custom vanity, a stone top, and a more exact basin position. That adds coordination because the cabinet maker, plumber, and installer all need the same measurements to line up properly. In practice, the job stops being a simple cabinet change once splashback tiles or nearby fittings need touch-ups. If the room also needs associated finishing, tile installation services can become part of the scope.

Higher-scope heritage bathroom

Heritage bathrooms are where the quote often grows fastest. Old pipe positions rarely suit a modern wall-hung unit, and the surrounding wall finish usually needs repair after the old vanity comes out. If waterproofing or tile edges are affected, the job turns into a sequence of trades, and registered builders have a clear role in keeping that sequence coordinated.

That coordination is reflected in the total cost, not just the cabinet line. Bathroom renovations in Australia are labour-heavy because plumbing, waterproofing, tiling, and cabinetry all interact, and the Housing Industry Association commentary, as summarised in the Australian renovation context, reflects how sensitive wet-area work is to specification changes Housing Industry Association commentary, as summarised in the Australian renovation context. The lesson is simple, the more the room changes, the less useful a flat vanity price becomes.

A trustworthy Melbourne quote should show each tier clearly. If the installer talks only about the cabinet and leaves out the surrounding trades, the job is probably not being priced at the depth the bathroom needs.

DIY Versus Professional Installation

A DIY vanity swap can work when the job is simple. If the cabinet is the same size, the plumbing lines are already in the right place and you're not opening up wet areas, a competent homeowner can handle removal and refit with basic tools. The moment you touch plumbing alterations or waterproofing, the risk profile changes fast.

The biggest reason to hire a professional in Victoria is compliance. Once the work crosses into plumbing, membrane disturbance or broader bathroom renovation scope, the project stops being a casual weekend job and starts looking like regulated building work. That's where registered builders and licensed trades matter, because they coordinate the sequence and keep the work in the right legal lane.

If you can remove a cabinet without touching the plumbing or the wall finish, DIY can be sensible. If you need a plumber or a waterproofing repair, it usually stops being a DIY saving.

There's also the insurance and resale side. Non-compliant work can create problems later if a pre-purchase inspection flags it, and homeowners don't want to explain an unlicensed bathroom fix when selling. A professional install also carries the practical advantage of accountability, because if something leaks or lifts later, you're dealing with an accountable trade rather than your own weekend patch-up.

For readers comparing a swap with a larger bathroom scope, tile installation services become relevant as soon as splashback repairs or edge tiles need to be matched back in.

How to Get an Accurate Quote You Can Trust

Good quotes start with good information. Before you call anyone, take photos of the bathroom from several angles, note where the taps and waste sit, and keep the existing floor plan handy if you have it. If you know the vanity size, basin type and whether the wall is masonry or framed, include that too.

A serious tradesperson will want to know what's already behind the old cabinet. If you can tell them whether the waterproofing has been recently redone, whether the existing plumbing is centred, and whether the wall is being opened up, they can price the install much more accurately. That saves you from the false economy of the cheapest number on the page.

What to ask every quote giver

  • Scope clarity: Ask whether removal, disposal, plumbing reconnects and patching are included.
  • Compliance proof: Ask who will carry the plumbing or builder responsibility where needed.
  • Fixing method: Ask how the vanity will be anchored if it's wall-hung.
  • Finish work: Ask what happens to the splashback edge, the silicone lines and any broken tile.
  • Exclusions: Ask what's not included, and have them write it down.

A quote without a labour breakdown is a warning sign. So is one that ignores waterproofing, disposal or any mention of wall repair. Those omissions are exactly what create change orders halfway through the job, especially in older Melbourne bathrooms where nothing behind the old vanity is guaranteed to be neat.

The best quotes line up with the itemised buckets earlier in this article. If the scope list and the price structure don't match, the lowest number probably isn't comparing the same job. Ask for like-for-like quotes, then compare the details line by line instead of chasing the cheapest total.

A five-step checklist illustrating the essential items needed to prepare for a home renovation quote.

Smart Ways to Reduce Cost and Avoid Hidden Fees

The cleanest way to save money is to reduce change, not cut corners. Keep the existing plumbing position where you can, choose a vanity width that suits the current opening and avoid custom work unless the room needs it. Those choices limit the chance of extra labour, disposal charges and emergency plumbing call-outs halfway through the project.

Material selection matters too. A simple modular cabinet with a compatible basin is cheaper to install than a heavily customised setup, because the installer spends less time adjusting around it. Bundling the vanity with other planned bathroom works can also help, since the setup and coordination happen once instead of being repeated later.

The hidden fee trap is the quote that sounds cheap because it excludes the hard bits. Disposal, wall repair, tile patching and waterproofing touch-ups are exactly the items that tend to appear once the old vanity is removed. A properly scoped quote from a registered builder usually costs less in total than the lowest headline install price, because it prices the work that has to happen.

If you want help turning a vanity change into a properly scoped bathroom plan, Melbourne Tiling Services P/L handles bathroom renovations, tiling and waterproofing across Melbourne and greater Victoria, with the coordination needed when vanity work crosses into a larger bathroom job. Visit Melbourne Tiling Services P/L to compare your room, your scope and your quote before you sign anything.